"JEP 525, Structured Concurrency (Sixth Preview), has been elevated from Proposed to Target to Targeted for JDK 26. This JEP proposes a sixth preview after five rounds of previous preview delivered in JDK 19 through JDK 25. This feature simplifies concurrent programming by introducing the concept of structured concurrency to " treat groups of related tasks running in different threads as a single unit of work, thereby streamlining error handling and cancellation, improving reliability, and enhancing observability.""
"JEP 530, Primitive Types in Patterns, instanceof, and switch (Fourth Preview), has been elevated from Proposed to Target to Targeted for JDK 26. This JEP proposes a fourth preview, with two changes, after three rounds of preview delivered in JDK 25 through JDK 23. The changes are: enhance the definition of unconditional exactness; and the application of tighter dominance checks in switch constructs."
Several OpenJDK JEPs have been elevated from Proposed to Targeted for JDK 26, including JEP 525, JEP 524, and JEP 530. JEP 525 advances structured concurrency in a sixth preview and adds a method to StructuredTaskScope.Joiner to allow implementations to return a result after timeouts. JEP 524 continues PEM encodings in a second preview and includes class renames and encryption/decryption enhancements for related classes. JEP 530 proceeds as a fourth preview with enhanced unconditional exactness and tighter dominance checks in switch constructs. The ecosystem also saw Spring Framework 7.0 GA, point releases for Spring Data, Spring AI, JobRunr and Jox, the November 2025 Payara Platform edition, Maven 4.0 RC5, and a Micronaut maintenance release.
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